Worry is a form of identifying. Literally, the word has the meaning of tearing and twisting, or choking and strangling; it was originally connected with the word
′wring′, which is still used in the expression ′wringing one′s hands′, one of the outward signs of worry.
You will remember that every psychological or inner state finds some outer representation via the moving centre - that is, it is represented in some particular muscular movements or contractions, etc. You may have noticed that a state of worry is often reflected by a contracted wrinkling of the forehead or a twisting of the hands. States of joy never have this representation. Negative states, states of worry, or fear, or anxiety, or depression, represent themselves in the muscles by contraction, flexion, being bowed down, etc. (and often, also, by weakness in the muscles), whereas opposite emotional states are reflected into the moving centre as expansion, as standing upright, as extension of the limbs, relaxing of tension, and usually by a feeling of strength.
To stop worry, people who worry and thereby frown too much or pucker up and corrugate their foreheads, clench their fists, almost cease breathing, etc., should begin here - by relaxing the muscles expressing the emotional state, and freeing the breath. Relaxing in general has behind it, esoterically speaking, the idea of preventing negative states. Negative states are less able to come when a person is in a state of relaxation. That is why it is said so often that it is necessary to practise relaxing every day, by passing the attention over the body and deliberately relaxing all tense muscles.